Just making the new Sandra Bullock thriller turned into a harrowing journey of its own

A small crew of intrepid explorers undertake a journey into outer space that becomes infinitely more harrowing than they had anticipated--enough to make them laugh, cry and curse their fates. This is the story of Gravity, starring Sandra Bullock as a medical engineer and George Clooney as a veteran astronaut who, during a routine mission, become untethered from their shuttle, lose contact with earth and must rely on MacGyver-in-space improv skills for a chance of reaching home--or even a safe vessel--before their oxygen runs out.

But this is also the story of the filmmakers behind Gravity, director Alfonso Cuarón, cinematographer Emmanuel...